FNC announced Tuesday that the former Ultimate Fighting Championship heavyweight will make his promotional debut at FNC 37 on Feb. 6, 2027, in Munich. No opponent has been announced for “Bigi Boy.”
Former UFC heavyweight Jairzinho Rozenstruik signs with Fight Nation Championship for Feb. 6 return
Rozenstruik, 38, parted ways with the UFC in February 2025 after a unanimous decision loss to Sergei Pavlovich. His UFC victories include wins over Tai Tuivasa, Shamil Gaziev, Junior dos Santos, Alistair Overeem and Andrei Arlovski.
Following his UFC departure, Rozenstruik (16-6) won two bouts in Dirty Boxing Championship, capturing its inaugural heavyweight title in August 2025.
His scheduled MMA return will end a two-year absence from the sport.
View this post on Instagram
A post shared by Fight Nation Championship (@fnc_mma)